Reporter flies through prohibited area P-40. Reporter experiences VOR CDI fluctuations in the vicinity of P-40. 4000 ft ceiling necessitates flying at 2500 ft.

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Attributes
ACN	322140
Time
Date	199511
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mrb
State Reference	WV
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 9 flight time total : 181 flight time type : 58
ASRS Report	322140
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Left the 9d4 (deck airport). I could not get hold of williamsport radio 122.6 or through lrp VOR to open flight plan. Flew to the lrp VOR turned outbound on the 248 degree radial which is notamed 25 mi below 4000 ft, lost the lrp VOR and picked up mrb, the identify, and a 'to' indication on the 245 degree radial. I crossed hanover on course with a solid signal at 2500 ft MSL. I could not climb to 4500 ft because the ceiling was 4000 ft MSL. After passing littlestown about 6 mi, the CDI started swinging back and forth about 2 dots either side of center. I was still getting the identify and a 'to' indication. When I got to thurmont, md, I was north of thurmont and in P-40 which I found out from ATC after I landed and called them as instructed by mrb tower. After I crossed the mountain the CDI came back to center and I had no problems after that.

Original NASA ASRS Text

Title: RPTR FLIES THROUGH PROHIBITED AREA P-40. RPTR EXPERIENCES VOR CDI FLUCTUATIONS IN THE VICINITY OF P-40. 4000 FT CEILING NECESSITATES FLYING AT 2500 FT.

Narrative: LEFT THE 9D4 (DECK ARPT). I COULD NOT GET HOLD OF WILLIAMSPORT RADIO 122.6 OR THROUGH LRP VOR TO OPEN FLT PLAN. FLEW TO THE LRP VOR TURNED OUTBOUND ON THE 248 DEG RADIAL WHICH IS NOTAMED 25 MI BELOW 4000 FT, LOST THE LRP VOR AND PICKED UP MRB, THE IDENT, AND A 'TO' INDICATION ON THE 245 DEG RADIAL. I CROSSED HANOVER ON COURSE WITH A SOLID SIGNAL AT 2500 FT MSL. I COULD NOT CLB TO 4500 FT BECAUSE THE CEILING WAS 4000 FT MSL. AFTER PASSING LITTLESTOWN ABOUT 6 MI, THE CDI STARTED SWINGING BACK AND FORTH ABOUT 2 DOTS EITHER SIDE OF CTR. I WAS STILL GETTING THE IDENT AND A 'TO' INDICATION. WHEN I GOT TO THURMONT, MD, I WAS N OF THURMONT AND IN P-40 WHICH I FOUND OUT FROM ATC AFTER I LANDED AND CALLED THEM AS INSTRUCTED BY MRB TWR. AFTER I CROSSED THE MOUNTAIN THE CDI CAME BACK TO CTR AND I HAD NO PROBS AFTER THAT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.